thickness version 1.0 mm, other versions include 1.5 mm, 0.8 mm
profile center hole 3.3 mm
https://cad.onshape.com/documents/347c235acb7b3e9f2a3c1f2a/w/326f6dc5e165bd0946fc1c4f/e/68a18b214d8e792586952603
ALU-extrusion-1515-sys
alu-extrusion-dat
https://www.electrodragon.com